Optical Mouse

How does an Optical Mouse work?

The mechanical mouse was created in the early 1970’s. The optical mouse is a great improvement over the mechanical mouse. The Optical mouse was coined in 1999 by Agilent Technologies; the technology uses a tiny camera that takes thousands of pictures per second to determine position and speed.

The optical mouse uses a very small light emitting diode more commonly referred to as an LED which is red in color. This LED bounces light off of a mouse pad or desk surface onto a CMOS (Complimentary Metal Oxide Semiconductor).

Optical Mouse process:

First the LED produces a red light that is emitted onto a surface. Then the light is reflected off the surface back to the CMOS sensor. The CMOS sensor sends each image that is reflected back to a DSP (Digital Signal Processor) for analysis.

Using the thousands of images that the CMOS sends to the DSP for analysis, the DSP is able to detect both patterns and images and can determine if the mouse has moved, at what distance it has moved and at what speed. It is also able to determine if move mouse little bit or you click on any button of mouse, which are then sent to the computer that the mouse is hooked up to.

At that point the coordinates have been received by the computer and will show the movement of the mouse, usually by its cursor on the computer screen. When you move your mouse, your computer is updated with mouse coordinates more than hundreds of times per second, because mouse movement is so fast, the appearance of the mouse cursor on your computer screen is very smooth.

Benefits of Optical Mouse

There are many benefits to using optical mouse over manual/mechanical mouse. The mechanical mouse uses a tinny rubber ball, on the other hand, optical mouse uses LED , the main advantage of LED is that there is no way for the LED to stick or get dirty. This leads to high reliability. Many people complain that their manual mouse get dirty or it will not work properly after some time. But in Optical a mouse usually work well for years without a malfunction and there is no complain.

Today technology is too advanced and uses an LED and CMOS instead of a rubber ball to measure tracking; you can feel much better response and performance. Another great reason is that, you can use Optical mouse on lots of different surfaces, you don’t need to buy mouse-bad. Manual mice need a mouse pad made out of a special material to function optimally, optical mice do well on almost any kind of desk top or materials.

Because of their distinct advantages, optical mice are fast becoming the standard in computer stores around the world. Another benefit is that digital processing often results in smoother, more accurate performance than prior technologies. There are typically no special PC requirements for optical mice and installation is usually as simply plugging the device in to the computer.

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